Continuous rolling-mill



(No Model.) 3 Sheets--'Sheet 1.

R. HEINLE.

commnons ROLLING MILL. No. 344,104. Pa tentedJune 22,1886.

I5 I Willi 3 SheetsShet 2.

(No Model.)

R. HEINLE.

con'rmuous ROLLING MILL.

No. 344,104. Patented June 22, 1886.

(No Model.) 3 Sheets--Sheet 3.

R. HEINLE.

CONTINUOUS ROLLING MILL.

Patented June 22, 1886.

INVENTOR,

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ROBERT HEINLE, OF ALTOONA, PENNSYLVANIA.

CONTENUOUS ROLLlNGeMILL.

SPECIFICATION forming part of Letters Patent No. 34:4,104, dated June22, 1886.

Application filed March 11,1886. Serial No. 154.767. (No model.)

To all whom it may concern.-

Be it known that I, ROBERT HEINLE, residing at Altoona, in the county ofBlair and State of Pennsylvania, a citizen of the United States, haveinvented or discovered certain new and useful Improvements in ContinuousMills, of which improvements the following is a specification.

In the accompanying drawings, which make part of this specification,Figure l is a perspective View of a portion of a continuous niillembodying my invention. Fig. 2 is'a plan view ofa continuous1nill,showing a modification of my invention. Fig. 3 is a detail view ofthe scraping mechanism.

The invention herein relates to certain improvements in that class ofrolling-mills known as continuous trains, in which the various sets ofrolls composing the train are arranged one in front of the other. Therod or bar passing through these sets of rolls is reduced more or lessin cross-section by each set of rolls, and in order to take up theslack, as it might be termed, produced by theelongation efi'eeted bysectional reduction, each succeeding pair of rolls is driven at anincreased rate of speed proportional to the elongation effected; but asthis sectional reduction and consequent elongation varies with each sizeof bar rolled, and with the wear of the grooves of the various rolls, itfollows that means are necessary to adjust the speeds of the varioussets of rolls in ac cordance with the varying conditions of work.

The object of the invention herein is to so construct and arrange such amill and its driving mechanism that the speeds of the several sets ofrolls shall be automatically adjusted to the desired speed by or fromthe movement of the bar or rod as it passes between the several sets ofrolls, and to this end the invention eon sists in the construction andcombination of parts, substantially as hereinafter described andclaimed.

In the drawings are shown two sets or pairs of rolls, A and 13, forminga part of a continuous mill. These rolls are mounted in the usual mannerin the housings 1, and are provided with the usual intermeshingdriving-gears, 2, as shown in connection with the pair or set of rolls1-3. To the shaft of one of the gears 2 is secured the cone-pulley 3,around which passes a belt, 4, leading from an oppositely-arrangedcone-pulley, being driven in any suitable manner.

Between the sets or stands of rolls A and B is arranged a guide-troughor leader, 7, formed in two parts, as shown, the adjacent ends of saidparts fitting one within the other. The outer ends of the two parts ofthe trough 7 are arranged on a line with the grooves in. the two sets ofrolls; but the adjacent ends are arranged below the plane passingthrough the grooves of the two sets of rolls, so that a rod passing fromthe set of rolls A will pass down one part of the trough and up theother part to therolls. Over the trough, at its lowest point, is locatedthe grooved friction-roll 8, mounted in the arms of the yoke 9,surrounding the trough, said yoke being connected to one arm of thebell-crank lever 10, the opposite arm of said lever being connected to arod, 11, provided at its outer end with an eye, through which passes thedrivingbelt 4.

The set of rolls A, and all other sets of rolls composing the train, aredriven in the manner described and shown in connection with the rolls13, except the first set of rolls of the train,

which are driven in the ordinary manner.

In operating my improved mill the driving mechanism is so arranged thateach set of rolls is normally driven at a higher rate of speed than isrequired by the elongation produced in cross sectional reduction; hencewhen, for instance, a rod going from the rolls A will pass along'thetrough 7, following the line of said trough, and entering the grooves inthe rolls l3, and as these rolls are driven, as above stated, at ahigher rate of speed than that of the rod, the latter will be drawntaut, causing it to rise out of the trough and lift the roll 8 and yoke9. This movement of the yoke will effect, through the bell-crank 10 androd 1] such a shifting of the belt as to reduce the speed of the rolls Buntil their circumferential velocity will equal that of the rod beingfed thereto. If thereshould be any slackening of the rod between therolls, the yoke and roll will immediately drop, and thus shift the belta so as to increase the speed of the rolls B, and thus keep the rodunder a constant tension.

It will be observed from the above that the speed of each succeeding setof rolls will always be proportional to the speed at which the rod isfed by the preceding rolls, and hence speed in accordance with the feedof the, rod,

being rolled, and in lieu of the open trough I may use a tube formed intwo parts, their adjacent ends fitting one within the other, the yoke 9being connected to such tube, so as to rise and fall therewith.

In some instances it may be desirable or necessary to effect theregulation of the speed of the rolls by hand, in which case the rod 11is connected to a hand-lever, 14, so located that the operator may watchthe movements of the rod being rolled, and regulate the speed of therolls in accordance with such move:

ments. 7 a p In order to produce a proper finish on rods or hoops, it iscustomary to scrape such rods or hoops just before their passage throughthe last or finishing set of rolls, such scrapers be:

ing generally operated by hand. In order to make the operation of myimproved mill as nearly automatic as possible, I

attach the scraping-blades 15 to the jawsof the tongs 16, which arepivoted to a post, 17, in the rear of the rolls 0 and at one side of thetrough 7. The blades 15 extend laterally from the jaws of the tongs intothe path of the rods being rolled. The reins 18 of the tongs extend to apost, 19, in line with point of union between the two parts of thetrough, and are provided with forked ends embracing said post. The reinconnected to the lower scraping,- blade is held stationary by the pins20, passing through holes in the post, a series of such holes beingprovided for the adjustment of said lower blade, as will bereadilyunderstood. The rein connected to the upper scrapingblade restsupon a spring, 21, surroundingthe post 19, said spring being in turnsupported by a fork 22, extending from the roller v10 or from the trough7, saidfork valso embracing the post 19.

By the above-described mechanism, the scrapers, as well as thespeed-regulating mech-..

anism, will be operated byor from the rod being' rolled. Byinterposingthespring 21 betweenthe movable rein and the fork 22 the upper. bladewill be caused to, follow. any ine-. qualities in the surface of the rodorhoop beingrolled. t a l,

The main characteristic of my invention is the rod passing between twosets of rolls; and hence I do not wish to limit myself to any particularform or arrangement of driving mechanism, or of mechanism forcommunicating motion from the rod being rolled to such driving mechanismfor the purpose of regulating the same. a

[I claim as my invention- 1. In a continuous mill, the combination of.two or more sets of rolls, mechanism for driving such rolls, andmechanism for independently adjusting the speed of such rolls inaccordance with the feed of the article being rolled, substantially asset forth.

2. In a continuous mill, the combination of .two or more sets of rolls,mechanism for driving such rolls, and mechanismfor automaticallyadjusting the speed of such rolls in accordance with the feed of thearticle being rolled, substantially as setforth. s 1

3.,In a continuous mill, the combination of two ormore sets of rolls,mechanism for driving such rolls, and automaticmechanism lo catedbetween adjacent sets of rolls for adj ust ing the speed of. the rollsin accordance with the feed of the article being rolled, :substantiallyas set forth. M

4. .In a continuous mill, the combination of two or more sets of rolls,mechanism for driv-v ing such rolls,-and mechanism for adjusting thespeed of the rolls in. accordance with the feed of the article beingrolled, suchspeedadjusting mechanism being operated by such articleonits passage between two sets of rolls, substantially assetforth. I

5. Ina continuous mill, the combination of two or, more setsof rolls,mechanism for driv ing such rolls, a jointed trough connecting twoadjacentsets of rolls, and mechanism connectingthe trough andutheroll-driving mechanism, whereby a movement of the troughwill vary thespeed. ofv rolls, substantiallyas set forth. l I

6., In a continuous mill, the combination'of ,twoor more, sets of rolls,scraping-bladesrarranged in front of one of said sets, and mechanism foroperating said blades by thearticle being rolled, substantially as setforth.

I 7.-,I n-,.a.rolling-mill, the combination of a pair, of rolls,scraping-blades arranged in front of said rolls, and mechanism foroperat-- ingsaid blades by the article being'rolled, substantially.asset forth. I

In, .testimony whereof I have hereunto set my hand. v v a .ROBERTHEINLE.

Witnesses:

- DARWIN S. WOLOOTT, R. H. WHITTLESEY.

the regulation of the speed of each succeeding set of rolls inaccordance with the,s .pee(l,of:

